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Finding the Fourth Proportional to 76,676.58, 115,064.06 and 37,212.16

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Solution

The fourth proportional to 76,676.58, 115,064.06 and 37,212.16 is: 55,842.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,676.58 : 115,064.06 = 37,212.16 : x
  2. Step 2: Convert to fraction form
    76,676.58/115,064.06 = 37,212.16/x
  3. Step 3: Cross multiply
    76,676.58x = 115,064.06 × 37,212.16
  4. Step 4: Simplify right side
    76,676.58x = 4,281,782,210.97
  5. Step 5: Solve for x
    x = 4,281,782,210.97/76,676.58
  6. Step 6: Final answer
    x = 55,842.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.